I like VideoETA. They will send you an email notification (and no spam at all, what a concept!) when a release date has been announced. I like it especially for older movies that are already on DVDs but not released on Blu-ray. I was eagerly hoping for Zathura--really underappreciated in my opinion--and I wasn't sure it was even going to come out. The email notification came ~2 months before the release date. If not for them, I probably wouldn't have know for months after its release. http://videoeta.com